Description MACH V1 & V1 Ultra Compatible (MACH V1 SERIES) Concentrated MACH Cleaning Solution: Effectively removes mess and grime on common floor types. Compatible with: MACH V1, V1 Ultra. Authentic part manufactured by eufy. eufy can only guarantee the quality and performance of authentic parts. Accessories and replacement parts manufactured by 3rd parties may have a negative impact on product performance or cause damage to your Vacuum. Use of 3rd party replacement parts could void your Vacuum’s warranty.